replace | 易学教程

Replacing a querystring parameter value using mod_rewrite

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问题 I would like to map this: http://www.example.com/index.php?param1=value1&param2=value2&param3=value3 (etc. ad infinitum) to http://www.example.com/index.php?param1=newvalue1&param2=value2&param3=value3 (etc.) In other words, just change the value of a single parameter in the query string. I know what the old value is, so I am trying to match the exact text index.php?param1=value1 and replace it with index.php?param1=newvalue1 . I cannot seem to find any examples on how to do this using mod

Search & replace using quickfix list in Vim

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问题 So far I always used EasyGrep for replacing text in multiple files. Unfortunately it is quite slow when a project gets bigger. One thing that seems to be amazingly fast is Ggrep of fugitive.vim that only search my version controlled files. All results are also stored in the quickfix list. How can I use the results of Ggrep for doing a simple replace over all those found files? Is it somehow possible to use %s/foo/bar/cg on all files in the quickfix list or are there any better ways? 回答1:

如何快速入侵一个网站

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首先，观察指定网站。入侵指定网站是需要条件的：要先观察这个网站是动态还是静态的。首先介绍下什么样站点可以入侵：我认为必须是动态的网站如ASP、 PHP 、 JSP等代码编写的站点如果是静态的（.htm或html）,一般是不会成功的。如果要入侵的目标网站是动态的，就可以利用动态网站的漏洞进行入侵。 Quote: 以下是入侵网站常用方法： 1.上传漏洞如果看到:选择你要上传的文件 [重新上传]或者出现“请登陆后使用”，80%就有漏洞了！有时上传不一定会成功,这是因为Cookies不一样.我们就要用WSockExpert取得Cookies.再用DOMAIN上传.　 2.注入漏洞字符过滤不严造成的 3.暴库:把二级目录中间的/换成%5c　　　 4.’or’=’or’这是一个可以连接SQL的语名句.可以直接进入后台。我收集了一下。类似的还有：　’or’’=’　\" or \"a\"=\"a　　 ’) or (’a’=’a　　 \") or (\"a\"=\"a　　or 1=1--　 ’ or ’a’=’a 5.社会工程学。这个我们都知道吧。就是猜解。　 6.写入ASP格式数据库。就是一句话木马〈%execute request(\"value\")%〉（数据库必需得是ASP或ASA的后缀）　　 7.源码利用：一些网站用的都是网上下载的源码.有的站长很懒

sql replace

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sql替换起因七牛云上传图片的返回时，前端拼接了域名，导致图片保存时，是全域名，例如 http://example.com/a.jpg 出现一个问题，域名快要到期了，需要更换域名，数据库中保存的数据需要更换成新的域名找到的答案 UPDATE your_table SET your_field = REPLACE ( your_field , 'articles/updates/' , 'articles/news/' ) WHERE your_field LIKE '%articles/updates/%' 答案地址实际应用 UPDATE banner SET img_url = REPLACE ( img_url , 'http://example.com' , 'http://google.com' ) WHERE img_url like 'http://example.com%' ; 来源： CSDN 作者： huskyui 链接： https://blog.csdn.net/qq_32296307/article/details/104030984

python replace函数替换无效问题

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str = "hello,china!" str.replace("hell","well") print(str) 写代码时发现这样替换之后并没有替换成功。原因: 在Python中字符串是是不可变对象。所以字符串使用replace需要重新赋值，生成一个新的对象。之前没有重新引用，导致该变量指向的是以前的对象，实则已经发生变化，只是没有重新引用而已。所以要想打印出替换后的字符串需要重新赋值，如下： str = "hello,china!" str = str.replace("hell","well") print(str) 这样就可以替换成功啦！！来源： https://www.cnblogs.com/qilin20/p/12207901.html

MySQL update if exists else insert

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问题 I have a table of archived values for each channel_id, but I also want to keep the current value for each channel_id available. I first tried to put it in a separate table, but using a union on the tables for each select query was impossibly slow (I made a view of the union of the two tables). So I guess the best alternative is to keep it in the table of archived data, with an extra column to indicate if it is the current value? My question is then, how do I add the current value to that

MySQL : replace occurence of a string in field except first one

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问题 I want to update all fields of a column, a lot of them have a desired string in there, but I want this string to be in only each field once, for instance : "MyString OtherString MyString AnotherString AndAnother MyString" to "MyString OtherString AnotherString AndAnother" would you have any idea on how to achieve this ? 回答1: If "MyString" will always occur as the first term in the field, this would work: update MyTable set MyField = replace(MyField, ' MyString','') The key point above is that

MySQL : replace occurence of a string in field except first one

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Mysql REPLACE resulted in 0 values on all rows

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问题 I've used the following SQL query in a MySQL database to replace part of a string in a cell: UPDATE TEST.database2014 SET together1 = REPLACE(together1, "/1900", "20") For some reason all the rows (225,000!) have now a value of 0. This is the message which I got: /* Affected rows:225,000 Found rows: 0 Warnings: 0 Duration for 1 query: 16,888 sec. */ ADDITIONAL INFORMATION: data example contained in field together1: TESTING^^^19/01/2014^^ Is there a known reason for this happening? I find it

Access 2010 - Need to replace a null with a value

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问题 I have a query that looks at two times and calculates the difference and puts the value (in seconds) in another field. I then sort that field. The problem is when one of the times is empty the row in the new field in not populated so when I do the sort the rows that nothing in them are pushed to the top. What I would like to do is replace the null with another value. Something like 9999999. That way when I perform the sort the rows that now have 999999 will be place at the bottom of the sort.